Stovepipe-thimble.



PATENTED JULY 28, 1908.

N" A E L 0 M um W.

STOVYEPIPE THIMBLE.

APPLIOATION FILED MAR.30.1907.

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' .PATENTED JULY 28, 1908. w. B. MGLEAN. STOVBPIPE THIMBLE. APPLICATIONl ILED MAR.30.1907.

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UNITED STATES iA ENT OFFICE.

WILLIAM B. McLEAN, OF HENSALL, ONTARIO, CANADA.

STOVEPIPE-THIMBLE.

' a subject of the King of Great Britain, and a resident of Hensall, inthe county of Huron,

.in the Province of Ontario, Canada, have invented a new and usefulImprovement in Stovepipe-Thimbles, of which the following is aspecification.

This invention relates to a thimble or sleeve which extends through awall or ceiling, particularly around a stove pipe where the latterextends through the wall or ceiling.

The objects of this invention are ;to provide a device that willcompletely prevent any excess of heat in the pipe from mjuring orotherwiseaflecting the surrounding wall or ceiling, or the carpet on thefloor of the room above the ceiling, and thus provide a fire proof stovepipe thimble; one that will completely prevent any possibility of thedust in one room passing into the adjoining room into which the thimbleo ens, thus rendering the stove pipe thimb e dust proof;.

one that is perfect in regulation because it can be readily, easily andinstantly adjusted by a person in-either room or compartment into whichit opens, to completely close the passage therethrough from one roominto the other; one in which there is an air space between the stovepipe and the outside cylinder or barrel of the thimble, to convey theheat from one apartment to the other, and when one end of the thimbleopens into a chimney or extends through an outside wall, providesventilation; and one which is provided with registers at each end toregulate the passage ofheat from one compartment to another or toregulate ventilation; and at the same time provide a neat, simple strongand durable device, one that will be economical to manufacture, thusinsuring its success commercially as well as for efliciency when inpractical use.

With the above and other objects in view, which will more clearly appearas the nature of the invention is better understood; the same consistsin the novel construction combination and arrangement of arts which willbe hereinafter first fully set f drth and described and then pointed outin the claims, reference being had to the accompanying drawings whereinFigure 1..is a central cross sectional view in perspective of a doublebarrel or cylinder stove pipe thimble illustrating my invention. Fig. 2.is a detail central cross sectional view Specificationof Letters Patent.

Application filed March 30, 1907.

view of the thimble.

Patented July 28, 1908.

Serial No. 365,592.

in perspective of one of th e registers. Fig. 3. 1s a detail centralcross sectional view in perspective of the detachable head or end of thestove pipe thimble. Fig. 4. is an end In this view one half of the endcover is cut away. Fig. 5. is a central cross sectional view of a singlebarrel or single cylinder stove pipe thimble.

In the accompanying drawings ;-The numeral 1 designates the outsidebarrel or cylinder of the stove pipe thimble provided with the externalrim flanges, a, and, b, at opposite ends, respectively.

The numeral 2 designates the annular head or end of the stove pipethimble which is secured to the outside cylinder 1, preferably byfolding the outer portion, 0, of said head or end over the outer portionof the rim flange, b, of said outside cylinder 1; the inner edge of saidannular head or end 2, is provided with the flange, d, and in this heador end 2 the register openings 4 the supplemental openings 5 and thecentral or stove pipe openings 6 are formed.

7 designates an annular register which rests against andmoves freely onthe head or end 2., and in said register 7the register 0 enings 8, thesupplemental openings 9, an the central or stove pipe opening 10 areformed, which openings 8, 9 and 10 corres ond with the openings 4, 5 and6 of the hea or end 2.

11 designates a cover or cap, the flange, 6, of which is fitted to andinserted in the central or stove pipe openings 6 and 10 in said head orend 2 and said register 7, respectively.

12 designates a removable annular head or end which is secured to thering or collar 13, preferably by folding the outer portlon, f, of saidremovable head or end 12 over the outer portion of said ring or collar13, and this rmg or collar 13 is provided with a flange 14, which isfitted to and inserted in the end of the outside cylinder 1 and saidflange 14 and said outside cylinder 1, are so constructed and fittedthat when said flange is insertedln the open end of said cylinder 1,their frictional contact will firmly hold them together said annularhead or end 12 to permit its removal without injury. And in saidremovable annular head or end 12 the register openings 17, thesupplemental openings 18, and

the removable head or end 12 is provided,

and said cap 25, is provided with a flange 26 which is fitted to andinserted in said central or stove pipe openings 19 and 23, in saidremovable head or end 12 and said register 20, respectively.

27 designates an inner barrel or cylinder shown in Fig. 5, which ispreferable to use in the case of large stove pipe thimbles to brace andstiffen the same.

In order to facilitate the formation of the annular rim flanges, a, andb, on the outside cylinder 1, slits 28 are preferably formed in themasshown in Fig. 1. And to insure the holding of the inner barrel orcylinder 27 in place it may be bolted or otherwise secured to the flange15 of the head or end 12.

The assembling of the different parts of the stove pipe thimble isclearly shown by the drawings, and when so assembled, said stove pipethimble may be inserted in the ordinary or original stove pipe hole,there will be therefore no necessity for any extra or additional cuttinaway of thewall, ceiling or carpet; and w en inserted in said stove pipehole will not project nor will it be in the way of anything; and againwhen the stove pipe is projected through said thimble it stiffens andstrengthens and protects said thimble. And there being an annular airspace between the outside cylinder 1 and the stove pipe, or between saidcylinder 1 and the inner cylinder 27, it will be practically impossiblefor the heat from the stove pipe to radiate across this annular airspace and through the outside cylinder 1, to injuriously affect thesurroundin wall, ceiling or carpet, thus rendering t is device fireproof. And this air space between the stove pipe and the outsidecylinder 1, forms a passage which, when the registers 11 and 20 areopen, permits the heat to pass from one apartment to another, and whenone end of this thimble opens into a chimney or when it is located in anoutside wall, provides an exit for ventilation. And by means of theregisters, the passage of the heat from one compartment to another, orthe ventilation may be readily, easily and instantly regulated, thusforming a perfect heat conveyer, regulator and ventilator. And when theregisters are closed, all possibility of the dust passing from onecompartment to the other will be avoided, thus rendering this devicedust proof. And when there is no pipe in this thimble, by 'in sertingthe covers 11 and 25 in the central openings in the heads, it will beimpossible for the dust from one room to pass into the other. Again thesupplemental openings in the heads or ends and in the registers are soarranged that when the register openings are closed, said supplementalopenings in said registers will be opposite the register openings in thehead or end, and the supplen'lental openings in the head or end will beopposite the register openings in the register, this will permitcurrents of air to enter said air spa ee between the pipe and saidoutside cylinder, to further assist in preventing any excess of heatfrom the stove pipe from injurieusly affecting the surrounding wall,ceiling or carpet. And when the stove pipe is removed from the thimble,the overhanging edge, g, of the cap or cover will hold the registers 20and 7 in place. And the register openings being formed practially thesame width as the air space, these thimbles can be kept perfectly cleanand free from dust. And one end of the thimble being formed removablethey can be slipped into the stove pipe hole in the chimney after thelatter is built.

The heads or ends of the thimble hold it in place, they do not thereforerequire any -na1ls, screw nails, springs or other holding means to holdthem in place. These thimbles are made any length required, they willtherefore fit neatly on the walls, ceiling or floors. And by ventilatinginto the chimney, are not affected by winds, dust or rain storms. And bypermitting the heat of one room to pass into another, they economize andsave fuel expenses. And by having double registers, one at each end,they are under instant control from either of the rooms or compartments.At the same time a simple, strong, durable inexpensive, clean, safe, andefficient device is provided.

Having thus described my invention, I claim;

1. In a device of" the class described, the combination with an outsidecylinder provided at each end with an external flange, and heads securedto the flanges on each end. of said cylinder, one of which heads isdetachable, and in each of which. heads a cen tral opening and a seriesof register and supplemental openings are formed, and a ring or collarto which said removable head is se cured, of an annular registeradjacent to each head in which a series of register and supplementalopenings are formed, substantially as shown and described and for thepurpose specified.

2. In a device of the class described, the combination with an outsidecylinder, provided at each end with an external flange, heads secured toeach of the flanges of said cylinder, one of which heads is detachable,and in each of which heads a central openin and a series of re ister andsu plementa openings are forme and an insi e cylinder, of an annularregister mounted on each head in which a, series of register andsupplemental openings are formed, substantially as shown and describedand for the purpose specified. 3. In a stove pipe thimble, an outsidecylinder provided at each end with aneXter nal flange, annular heads oneach end of said cylinder, each head having inner and outer flanges, theouter flanges engaging the external flanges of the cylinder, each headprovided with a series of register openings and a series of supplementalopenings, an annular register arranged to rotate on each head and eachregister provided with register openings and supplemental openings, aring or collar within one end of said cylinder, and

braces secured to said ring or collar and to the inner flange of thehead adjacent thereto.

4:. In a device of the class described, the

combination with an outside .cylinder, heads secured to each end of saidcylinder, one of which heads is detachable, and in each of which heads,a central opening and a series of register and supplemental openings areformed, an inside cylinder, and a cap secured in the central opening ofeach head, of an annular register adjacent to each head in which aseries of register and supplemental openings are formed, substantiallyas shown and described and for the purpose specified. In testimonywhereof, I have signed in the presence of the two undersigned'witnesses.

. WILLIAM B. MOLEAN. Witnesses:

P. J. EDMUNDs,

' V. CoUsINs.

